Answer:
When homologous chromosomes form pairs during prophase I of meiosis I, crossing-over can occur. Crossing-over is the exchange of genetic material between homologous chromosomes. It results in new combinations of genes on each chromosome. It is obviously another source of genetic variation in offspring.
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Answer is letter B: prophase
Answer: A: Detecting and locating objects and moving animals in the water
Explanation:
Its used for sensing tiny vibrations in the water
Answer:
A) Food enters the mouth
B) Esophagus
C) Stomach
D)Cecum
E) Feces is expelled
Explanation:
The food is ingested through the mouth and and then it is transported through the esophagus to the stomach from where it reaches the small and large intestine and then it is finally expelled as undigested or waste foo product.
Based on the above brief explanation, the flow chart depicting food movement are as follows -
a) Food enters the mouth
b) Esophagus - known as the food pipe
c) Stomach
d)Cecum - it is a small pouch connected to small and large intestine.
e) Feces is expelled through rectum
